/// <license>
/// Copyright (c) 2002-2008, DotNetNuke Corporation
/// All rights reserved
///
/// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
/// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
/// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
/// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
/// of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
/// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
/// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
/// DEALINGS IN THE SOFTWARE.
/// </license>

using System;
using System.Collections.Generic;
using System.Web.UI;

using DotNetNuke.Common.Utilities;
using DotNetNuke.Entities.Modules;
using DotNetNuke.UI.WebControls;
using DotNetNuke.Services.Localization;
using DotNetNuke.Entities.Users;
using DotNetNuke.Common;
using DotNetNuke.Entities.Portals;


namespace DotNetNuke.ModuleToolkit.Controls
{
    /// <summary>
    /// An Edit Control to Single values
    /// </summary>
    /// <history>
    [ToolboxData("<{0}:SingleEditControl runat=server></{0}:SingleEditControl>")]
    public class SingleEditControl : EditControl
    {

        #region     Public Properties

        protected Single OldSingleValue
        {
            get
            {
                Single singleValue = Null.NullSingle;
                try
                {
                    singleValue = Convert.ToSingle(OldValue);
                }
                catch {}
                return singleValue;
            }
        }

        protected Single SingleValue
        {
            get
            {
                Single singleValue = Null.NullSingle;
                try
                {
                    singleValue = Convert.ToSingle(Value);
                }
                catch {}
                return singleValue;
            }
        }

        protected override string StringValue
        {
            get 
            {
                String singleValue = String.Empty;
                if (SingleValue != Null.NullSingle)
                    singleValue = SingleValue.ToString();
                return singleValue; 
            }
            set
            {
            	Single setValue = Single.Parse(value);
                this.Value = setValue;
            }
        }

        #endregion

        #region Protected Methods

        protected override void OnDataChanged(EventArgs e)
        {
            PropertyEditorEventArgs args = new PropertyEditorEventArgs(Name);
            args.Value = SingleValue;
            args.OldValue = OldSingleValue;
            args.StringValue = StringValue;
            base.OnValueChanged(args);
        }

        protected override void Render(HtmlTextWriter writer)
        {
            string oldValue = Convert.ToString(OldValue);
            if (EditMode == PropertyEditorMode.Edit || (Required && String.IsNullOrEmpty(oldValue)))
                RenderEditMode(writer);
            else
                RenderViewMode(writer);
        }

        /// <summary>
        /// Render renders the control in edit mode
        /// </summary>
        /// <param name="writer">An HtmlTextWriter</param>
        protected override void RenderEditMode(System.Web.UI.HtmlTextWriter writer)
        {
            ControlStyle.AddAttributesToRender(writer);
            writer.AddAttribute(HtmlTextWriterAttribute.Type, "text");
            writer.AddAttribute(HtmlTextWriterAttribute.Size, "5");
            writer.AddAttribute(HtmlTextWriterAttribute.Value, StringValue);
            writer.AddAttribute(HtmlTextWriterAttribute.Name, this.UniqueID);
            writer.RenderBeginTag(HtmlTextWriterTag.Input);
            writer.RenderEndTag();
        }

        #endregion

    }

}
